Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Sfi system / Oxygen sensor heater control
circuit...
Toyota Corolla (E120): Oxygen sensor heater control circuit...
Dtc p0031 oxygen sensor heater control circuit low (bank 1 sensor 1)
Dtc p0032 oxygen sensor heater control circuit high (bank 1 sensor 1)
Dtc p0037 oxygen sensor heater control circuit low (bank 1 sensor 2)
Dtc p0038 oxygen sensor heater control circuit high (bank 1 sensor 2)
Other materials:
Inspection procedure
Hint:
hand–held tester only:
narrowing down the trouble area is possible by performing ”a/f control” active
test (heated oxygen
sensor or other trouble areas can be distinguished).
Perform active test using hand–held tester (a/f control).
Hint:
”a/f control” is the active te ...
Inspection procedure
1 Check d squib circuit(airbag sensor assy center – horn button
assy)
Disconnect the negative (–) terminal cable from the battery,
and wait at least for 90 seconds.
disconnect the connectors between the horn button assy
and the airbag sensor assy center.
for the blac ...
Radio broadcast cannot be received (bad reception)
Inspection procedure
1 Check if radio auto–search functions properly
Check if the radio auto–search functions properly.
Perform the auto–search of the radio and check that it functions
normally.
Standard: the radio auto–search functions properly.
2 Check optional ...